I see people saying that the old flashcarts cant work in the DSi, and some companies have already released new flashcarts for the DSi. I have even tested my Supercard slot one device in my DSi, and it will not work, as expected. But why can't they work? Is it software? hardware? Can I just plug my slot one device into a serial port on my computer and reprogram it to work? Or can some form of hacked firmware for the old flashcarts be made to make it work?